CVE-2024-46743

In the Linux kernel, the following vulnerability has been resolved: of/irq: Prevent device address out-of-bounds read in interrupt map walk When of_irq_parse_raw() is invoked with a device address smaller than the interrupt parent node (from #address-cells property), KASAN detects the following out-of-bounds read when populating the initial match table (dyndbg="func of_irq_parse_* +p"): OF: of_irq_parse_one: dev=/soc@0/picasso/watchdog, index=0 OF: parent=/soc@0/pci@878000000000/gpio0@17,0, intsize=2 OF: intspec=4 OF: of_irq_parse_raw: ipar=/soc@0/pci@878000000000/gpio0@17,0, size=2 OF: -> addrsize=3 ================================================================== BUG: KASAN: slab-out-of-bounds in of_irq_parse_raw+0x2b8/0x8d0 Read of size 4 at addr ffffff81beca5608 by task bash/764 CPU: 1 PID: 764 Comm: bash Tainted: G O 6.1.67-484c613561-nokia_sm_arm64 #1 Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.01-12.24.03-dirty 01/01/2023 Call trace: dump_backtrace+0xdc/0x130 show_stack+0x1c/0x30 dump_stack_lvl+0x6c/0x84 print_report+0x150/0x448 kasan_report+0x98/0x140 __asan_load4+0x78/0xa0 of_irq_parse_raw+0x2b8/0x8d0 of_irq_parse_one+0x24c/0x270 parse_interrupts+0xc0/0x120 of_fwnode_add_links+0x100/0x2d0 fw_devlink_parse_fwtree+0x64/0xc0 device_add+0xb38/0xc30 of_device_add+0x64/0x90 of_platform_device_create_pdata+0xd0/0x170 of_platform_bus_create+0x244/0x600 of_platform_notify+0x1b0/0x254 blocking_notifier_call_chain+0x9c/0xd0 __of_changeset_entry_notify+0x1b8/0x230 __of_changeset_apply_notify+0x54/0xe4 of_overlay_fdt_apply+0xc04/0xd94 ... The buggy address belongs to the object at ffffff81beca5600 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 8 bytes inside of 128-byte region [ffffff81beca5600, ffffff81beca5680) The buggy address belongs to the physical page: page:00000000230d3d03 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1beca4 head:00000000230d3d03 order:1 compound_mapcount:0 compound_pincount:0 flags: 0x8000000000010200(slab|head|zone=2) raw: 8000000000010200 0000000000000000 dead000000000122 ffffff810000c300 raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffffff81beca5500: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffffff81beca5580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffffff81beca5600: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffffff81beca5680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffffff81beca5700: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc ================================================================== OF: -> got it ! Prevent the out-of-bounds read by copying the device address into a buffer of sufficient size.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*

History

20 Sep 2024, 18:32

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/7ead730af11ee7da107f16fc77995613c58d292d - () https://git.kernel.org/stable/c/7ead730af11ee7da107f16fc77995613c58d292d - Patch
References () https://git.kernel.org/stable/c/8ff351ea12e918db1373b915c4c268815929cbe5 - () https://git.kernel.org/stable/c/8ff351ea12e918db1373b915c4c268815929cbe5 - Patch
References () https://git.kernel.org/stable/c/9d1e9f0876b03d74d44513a0ed3ed15ef8f2fed5 - () https://git.kernel.org/stable/c/9d1e9f0876b03d74d44513a0ed3ed15ef8f2fed5 - Patch
References () https://git.kernel.org/stable/c/b739dffa5d570b411d4bdf4bb9b8dfd6b7d72305 - () https://git.kernel.org/stable/c/b739dffa5d570b411d4bdf4bb9b8dfd6b7d72305 - Patch
References () https://git.kernel.org/stable/c/baaf26723beab3a04da578d3008be3544f83758f - () https://git.kernel.org/stable/c/baaf26723beab3a04da578d3008be3544f83758f - Patch
References () https://git.kernel.org/stable/c/bf68acd840b6a5bfd3777e0d5aaa204db6b461a9 - () https://git.kernel.org/stable/c/bf68acd840b6a5bfd3777e0d5aaa204db6b461a9 - Patch
References () https://git.kernel.org/stable/c/d2a79494d8a5262949736fb2c3ac44d20a51b0d8 - () https://git.kernel.org/stable/c/d2a79494d8a5262949736fb2c3ac44d20a51b0d8 - Patch
References () https://git.kernel.org/stable/c/defcaa426ba0bc89ffdafb799d2e50b52f74ffc4 - () https://git.kernel.org/stable/c/defcaa426ba0bc89ffdafb799d2e50b52f74ffc4 - Patch
First Time Linux linux Kernel
Linux
CWE CWE-125
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.1

20 Sep 2024, 12:30

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: of/irq: Evitar lecturas fuera de los límites de direcciones de dispositivos en el recorrido del mapa de interrupciones Cuando se invoca of_irq_parse_raw() con una dirección de dispositivo menor que el nodo padre de la interrupción (de la propiedad #address-cells), KASAN detecta la siguiente lectura fuera de los límites al completar la tabla de coincidencia inicial (dyndbg="func of_irq_parse_* +p"): OF: of_irq_parse_one: dev=/soc@0/picasso/watchdog, index=0 OF: parent=/soc@0/pci@878000000000/gpio0@17,0, intsize=2 OF: intspec=4 OF: of_irq_parse_raw: ipar=/soc@0/pci@878000000000/gpio0@17,0, size=2 OF: -> addrsize=3 ====================================================================== ERROR: KASAN: slab-out-of-bounds en of_irq_parse_raw+0x2b8/0x8d0 Lectura de tamaño 4 en la dirección ffffff81beca5608 por la tarea bash/764 CPU: 1 PID: 764 Comm: bash Tainted: GO 6.1.67-484c613561-nokia_sm_arm64 #1 Nombre del hardware: Unknown Unknown Product/Unknown Product, BIOS 2023.01-12.24.03-dirty 01/01/2023 Rastreo de llamadas: dump_backtrace+0xdc/0x130 mostrar_pila+0x1c/0x30 dump_stack_lvl+0x6c/0x84 imprimir_informe+0x150/0x448 kasan_informe+0x98/0x140 __asan_load4+0x78/0xa0 de_irq_parse_raw+0x2b8/0x8d0 de_irq_parse_one+0x24c/0x270 analizar_interrupciones+0xc0/0x120 de_fwnode_add_links+0x100/0x2d0 fw_devlink_parse_fwtree+0x64/0xc0 dispositivo_add+0xb38/0xc30 de_dispositivo_add+0x64/0x90 of_platform_device_create_pdata+0xd0/0x170 of_platform_bus_create+0x244/0x600 of_platform_notify+0x1b0/0x254 blocking_notifier_call_chain+0x9c/0xd0 __of_changeset_entry_notify+0x1b8/0x230 __of_changeset_apply_notify+0x54/0xe4 of_overlay_fdt_apply+0xc04/0xd94 ... La dirección con errores pertenece al objeto en ffffff81beca5600 que pertenece al caché kmalloc-128 de tamaño 128 La dirección con errores se encuentra 8 bytes dentro de la región de 128 bytes [ffffff81beca5600, ffffff81beca5680) La dirección con errores pertenece a la página física: página:00000000230d3d03 refcount:1 mapcount:0 mapping:0000000000000000 índice:0x0 pfn:0x1beca4 cabeza:00000000230d3d03 orden:1 composite_mapcount:0 composite_pincount:0 indicadores: 0x8000000000010200(slab|head|zone=2) sin procesar: 800000000010200 0000000000000000 muerto000000000122 ffffff810000c300 sin procesar: 000000000000000 0000000000200020 00000001ffffffff 0000000000000000 página volcada porque: kasan: mal acceso detectado Estado de la memoria alrededor de la dirección con errores: ffffff81beca5500: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffffff81beca5580: fc fc fc fc fc fc fc fc fc >ffffff81beca5600: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffffff81beca5680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffffff81beca5700: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc ==================================================================== OF: -> ¡entendido! Evite la lectura fuera de los límites copiando la dirección del dispositivo en un búfer de tamaño suficiente.

18 Sep 2024, 08:15

Type Values Removed Values Added
New CVE

Information

Published : 2024-09-18 08:15

Updated : 2024-09-20 18:32


NVD link : CVE-2024-46743

Mitre link : CVE-2024-46743

CVE.ORG link : CVE-2024-46743


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read