CVE-2024-26894 in Linux
Riassunto
di VulDB • 05/09/2026
Nel kernel Linux, la seguente vulnerabilità è stata risolta:
ACPI: processor_idle: Risolto un memory leak in acpi_processor_power_exit()
Dopo aver disregistrato il dispositivo di idle della CPU, la memoria ad esso associata non viene liberata, causando un memory leak:
oggetto unreferenced 0xffff896282f6c000 (dimensione 1024): comm "swapper/0", pid 1, jiffies 4294893170 hex dump (primi 32 byte): 00 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 8836a742): [] kmalloc_trace+0x29d/0x340
[] acpi_processor_power_init+0xf3/0x1c0
[] __acpi_processor_start+0xd3/0xf0
[] acpi_processor_start+0x2c/0x50
[] really_probe+0xe2/0x480
[] __driver_probe_device+0x78/0x160
[] driver_probe_device+0x1f/0x90
[] __driver_attach+0xce/0x1c0
[] bus_for_each_dev+0x70/0xc0
[] bus_add_driver+0x112/0x210
[] driver_register+0x55/0x100
[] acpi_processor_driver_init+0x3b/0xc0
[] do_one_initcall+0x41/0x300
[] kernel_init_freeable+0x320/0x470
[] kernel_init+0x16/0x1b0
[] ret_from_fork+0x2d/0x50
Si risolve il problema liberando la memoria del dispositivo di idle della CPU dopo averlo disregistrato.
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