Threats Tagged 'ghsa-6854-f26p-xx8r'
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Threats Tagged 'ghsa-6854-f26p-xx8r'
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A NULL pointer dereference vulnerability in the Linux kernel's serial core subsystem was resolved. The issue occurs in the function serial_core_unregister_port() when port->port_dev is NULL, leading to a potential kernel crash. The flaw arises because port->port_dev can be cleared on teardown or never set if registration fails, but the function attempts to dereference it without checking. The fix involves returning early if no port device is present and ensuring proper synchronization with port_mutex. Additionally, port->port_dev is cleared on error paths during registration to prevent this condition. Join the discussion | GCVE Database | 10/18/2026, 18:32:02 UTC Added: 10/18/2026, 19:40:27 UTC |
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