CVE-2026-98747: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: serial: core: fix NULL pointer dereference in serial_core_unregister_port() port->port_dev is NULL when no port device is installed: it is cleared on teardown, and never set if registration failed before serial_core_port_device_add(). serial_core_unregister_port() passes it straight to serial_core_get_ctrl_dev(), which dereferences it: KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] RIP: serial_core_unregister_port Call Trace: serial8250_unregister_port serial8250_remove unbind_store Return early when there is no port device, and read port->port_dev under port_mutex. Also clear port->port_dev on the serial_core_register_port() error path, where the port device has already been removed.

Засегнати продукти

• Linux Linux: 84a9582fd203063cd4d301204971ff2cd8327f1a преди 54abbb862366dcaf1f22f1e968358147b7d0547d; 84a9582fd203063cd4d301204971ff2cd8327f1a преди 499485a67fbacf4d9afbdb43522388c64f853428
• Linux Linux: 6.5; преди 6.5; 7.2.10 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98747
• https://nvd.nist.gov/vuln/detail/CVE-2026-98747
• https://git.kernel.org/stable/c/54abbb862366dcaf1f22f1e968358147b7d0547d
• https://git.kernel.org/stable/c/499485a67fbacf4d9afbdb43522388c64f853428