CVE-2023-52780

net: mvneta: fix calls to page_pool_get_stats

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

net: mvneta: fix calls to page_pool_get_stats

Calling page_pool_get_stats in the mvneta driver without checks
leads to kernel crashes.
First the page pool is only available if the bm is not used.
The page pool is also not allocated when the port is stopped.
It can also be not allocated in case of errors.

The current implementation leads to the following crash calling
ethstats on a port that is down or when calling it at the wrong moment:

ble to handle kernel NULL pointer dereference at virtual address 00000070
[00000070] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Hardware name: Marvell Armada 380/385 (Device Tree)
PC is at page_pool_get_stats+0x18/0x1cc
LR is at mvneta_ethtool_get_stats+0xa0/0xe0 [mvneta]
pc : [<c0b413cc>] lr : [<bf0a98d8>] psr: a0000013
sp : f1439d48 ip : f1439dc0 fp : 0000001d
r10: 00000100 r9 : c4816b80 r8 : f0d75150
r7 : bf0b400c r6 : c238f000 r5 : 00000000 r4 : f1439d68
r3 : c2091040 r2 : ffffffd8 r1 : f1439d68 r0 : 00000000
Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Control: 10c5387d Table: 066b004a DAC: 00000051
Register r0 information: NULL pointer
Register r1 information: 2-page vmalloc region starting at 0xf1438000 allocated at kernel_clone+0x9c/0x390
Register r2 information: non-paged memory
Register r3 information: slab kmalloc-2k start c2091000 pointer offset 64 size 2048
Register r4 information: 2-page vmalloc region starting at 0xf1438000 allocated at kernel_clone+0x9c/0x390
Register r5 information: NULL pointer
Register r6 information: slab kmalloc-cg-4k start c238f000 pointer offset 0 size 4096
Register r7 information: 15-page vmalloc region starting at 0xbf0a8000 allocated at load_module+0xa30/0x219c
Register r8 information: 1-page vmalloc region starting at 0xf0d75000 allocated at ethtool_get_stats+0x138/0x208
Register r9 information: slab task_struct start c4816b80 pointer offset 0
Register r10 information: non-paged memory
Register r11 information: non-paged memory
Register r12 information: 2-page vmalloc region starting at 0xf1438000 allocated at kernel_clone+0x9c/0x390
Process snmpd (pid: 733, stack limit = 0x38de3a88)
Stack: (0xf1439d48 to 0xf143a000)
9d40: 000000c0 00000001 c238f000 bf0b400c f0d75150 c4816b80
9d60: 00000100 bf0a98d8 00000000 00000000 00000000 00000000 00000000 00000000
9d80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9da0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9dc0: 00000dc0 5335509c 00000035 c238f000 bf0b2214 01067f50 f0d75000 c0b9b9c8
9de0: 0000001d 00000035 c2212094 5335509c c4816b80 c238f000 c5ad6e00 01067f50
9e00: c1b0be80 c4816b80 00014813 c0b9d7f0 00000000 00000000 0000001d 0000001d
9e20: 00000000 00001200 00000000 00000000 c216ed90 c73943b8 00000000 00000000
9e40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9e60: 00000000 c0ad9034 00000000 00000000 00000000 00000000 00000000 00000000
9e80: 00000000 00000000 00000000 5335509c c1b0be80 f1439ee4 00008946 c1b0be80
9ea0: 01067f50 f1439ee3 00000000 00000046 b6d77ae0 c0b383f0 00008946 becc83e8
9ec0: c1b0be80 00000051 0000000b c68ca480 c7172d00 c0ad8ff0 f1439ee3 cf600e40
9ee0: 01600e40 32687465 00000000 00000000 00000000 01067f50 00000000 00000000
9f00: 00000000 5335509c 00008946 00008946 00000000 c68ca480 becc83e8 c05e2de0
9f20: f1439fb0 c03002f0 00000006 5ac3c35a c4816b80 00000006 b6d77ae0 c030caf0
9f40: c4817350 00000014 f1439e1c 0000000c 00000000 00000051 01000000 00000014
9f60: 00003fec f1439edc 00000001 c0372abc b6d77ae0 c0372abc cf600e40 5335509c
9f80: c21e6800 01015c9c 0000000b 00008946 00000036 c03002f0 c4816b80 00000036
9fa0: b6d77ae0 c03000c0 01015c9c 0000000b 0000000b 00008946 becc83e8 00000000
9fc0: 01015c9c 0000000b 00008946 00000036 00000035 010678a0 b6d797ec b6d77ae0
9fe0: b6dbf738 becc838c b6d186d7 b6baa858 40000030 0000000b 00000000 00000000
page_pool_get_s
---truncated---

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: mvneta: corrige llamadas a page_pool_get_stats. Llamar a page_pool_get_stats en el controlador mvneta sin comprobaciones provoca fallos del kernel. Primero, el grupo de páginas solo está disponible si no se utiliza bm. El grupo de páginas tampoco se asigna cuando se detiene el puerto. También se puede no asignar en caso de errores. La implementación actual provoca el siguiente fallo al llamar a ethstats en un puerto que está inactivo o al llamarlo en el momento equivocado: ble para manejar la desreferencia del puntero NULL del kernel en la dirección virtual 00000070 [00000070] *pgd=00000000 Error interno: Ups: 5 [ #1] Nombre del hardware SMP ARM: Marvell Armada 380/385 (árbol de dispositivos) La PC está en page_pool_get_stats+0x18/0x1cc LR está en mvneta_ethtool_get_stats+0xa0/0xe0 [mvneta] pc: [] lr: [] psr: a0000013 sp: f1439d48 ip: f1439dc0 fp: 0000001d r10: 00000100 r9: c4816b80 r8: f0d75150 r7: bf0b400c r6: c238f000 r5: 00000000 : f1439d68 r3 : c2091040 r2 : ffffffd8 r1 : f1439d68 r0 : 00000000 Banderas: NzCv IRQ activadas FIQ en modo SVC_32 ISA ARM Segmento ninguno Control: 10c5387d Tabla: 066b004a DAC: 00000051 Información del registro r0: puntero NULL Información del registro r1: región vmalloc de 2 páginas que comienza en 0xf1438000 asignada en kernel_clone+0x9c/0x390 Información del registro r2: memoria no paginada Registre información de r3: slab kmalloc-2k start c2091000 desplazamiento del puntero 64 tamaño 2048 Registre información de r4: región vmalloc de 2 páginas que comienza en 0xf1438000 asignada en kernel_clone+0x9c/0x390 Registre información de r5: puntero NULL Registre información de r6: slab kmalloc-cg-4k inicio c238f000 desplazamiento del puntero 0 tamaño 4096 Información del registro r7: región vmalloc de 15 páginas que comienza en 0xbf0a8000 asignada en load_module+0xa30/0x219c Información del registro r8: región vmalloc de 1 página que comienza en 0xf0d75000 asignada en ethtool_get_stats+0x138/0x208 Información del registro r9: laboratorio task_struct start c4816b80 desplazamiento del puntero 0 Registrar información r10: memoria no paginada Registrar información r11: memoria no paginada Registrar información r12: región vmalloc de 2 páginas que comienza en 0xf1438000 asignada en kernel_clone+0x9c/0x390 Procesar snmpd (pid: 733, límite de pila = 0x38de3a88) Pila: (0xf1439d48 a 0xf143a000) 9d40: 000000c0 00000001 c238f000 bf0b400c f0d75150 c4816b80 9d60: 00000100 bf0a98d8 000 00000000 00000000 00000000 00000000 00000000 9d80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 000000 00 9da0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9dc0: 00000dc0 5335509c 00000035 c238f000 bf0b2214 01067f50 f0d75000 c0b9b9c8 9de0: 0000001d 00000035 c2212094 5335509c c4816b80 0 c5ad6e00 01067f50 9e00: c1b0be80 c4816b80 00014813 c0b9d7f0 00000000 00000000 0000001d 0000001d 9e20: 00000000 00001200 00000000 00000000 c216ed90 c73943b8 00000000 00000000 9e40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9e6 0: 00000000 c0ad9034 00000000 00000000 00000000 00000000 00000000 00000000 9e80: 00000000 00000000 00000000 5335509c c1b0be80 9ee4 00008946 c1b0be80 9ea0: 01067f50 f1439ee3 00000000 00000046 b6d77ae0 c0b383f0 00008946 becc83e8 9ec0: c1b0be80 00000051 0000000b c68ca48 0 c7172d00 c0ad8ff0 f1439ee3 cf600e40 9ee0: 01600e40 32687465 00000000 00000000 00000000 01067f50 00000000 00000000 9f00: 00000000 5335509c 00008946 00008946 00000000 c68ca480 becc83e8 c05e2de0 9f20: f1439fb0 c03002f0 00000006 5ac3c35a c4816b80 00000006 b6 d77ae0 c030caf0 9f40: c4817350 00000014 f1439e1c 0000000c 00000000 00000051 01000000 00000014 9f60: 00003fec f1439edc 00000001 c0372abc b6d77ae0 c0372abc cf600e40 5335509c 9f80: c21e6800 01015c9c 0000000b 00008946 00000036 c03002f0 c4816b80 00000036 9fa0: b6d77ae0 c03000c0 01015c9c 0000000b 0000000b 00008946 becc83e8 00000000 9fc0: 01015c9c 0000000b 00008946 00000036 00000035 8a0 b6d797ec b6d77ae0 -truncado-

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-21 CVE Reserved
2024-05-21 CVE Published
2024-05-22 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/b3fc79225f055af7ef48b47a90752c31cc062e6e	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/00768b3e90e648227eaa959d9d279f5e32823df1	2023-11-28
https://git.kernel.org/stable/c/230dc06e2495487d88b3410da055bb618febb19b	2023-11-28
https://git.kernel.org/stable/c/2b0e99072654edd601d05c0061a20337af5008ba	2023-11-28
https://git.kernel.org/stable/c/ca8add922f9c7f6e2e3c71039da8e0dcc64b87ed	2023-11-13

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.19 < 6.1.64 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.1.64"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.19 < 6.5.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.5.13"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.19 < 6.6.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.6.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.19 < 6.7 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.7"		en		Affected