Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-90337

serial: core: do fallible allocations before the console can be registered

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 266dcff03eed0050b6af11aaf2a61ab837d7ba3f to < e2ddbfd826836cba1b7a25ee4eb512f7d752b703affected
  • 266dcff03eed0050b6af11aaf2a61ab837d7ba3f to < 8c7c75bfa7b84d6999de2100ce9c09e3779249a0affected
  • 266dcff03eed0050b6af11aaf2a61ab837d7ba3f to < 9260a92ce90e6a95ce2ffdf1441c5216bf3f9552affected
  • 266dcff03eed0050b6af11aaf2a61ab837d7ba3f to < c2aec15f78b2e6ccd9b94216a901248511355982affected
  • 266dcff03eed0050b6af11aaf2a61ab837d7ba3f to < 1a0e4fbce5d9c1bc179a35a2fd9ed142664299e3affected

Linux Linux

Default version status: affected

  • 3.17affected
  • 0 to < 3.17unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.114 to ≤ 6.12.*unaffected
  • 6.18.57 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References