CVE-2024-46715

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-46715
In the Linux kernel, the following vulnerability has been resolved: driver: iio: add missing checks on iio_info's callback access Some callbacks from iio_info structure are accessed without any check, so if a driver doesn't implement them trying to access the corresponding sysfs entries produce a kernel oops such as: [ 2203.527791] Unable to handle kernel NULL pointer dereference at virtual address 00000000 when execute [...] [ 2203.783416] Call trace: [ 2203.783429] iio_read_channel_info_avail from dev_attr_show+0x18/0x48 [ 2203.789807] dev_attr_show from sysfs_kf_seq_show+0x90/0x120 [ 2203.794181] sysfs_kf_seq_show from seq_read_iter+0xd0/0x4e4 [ 2203.798555] seq_read_iter from vfs_read+0x238/0x2a0 [ 2203.802236] vfs_read from ksys_read+0xa4/0xd4 [ 2203.805385] ksys_read from ret_fast_syscall+0x0/0x54 [ 2203.809135] Exception stack(0xe0badfa8 to 0xe0badff0) [ 2203.812880] dfa0: 00000003 b6f10f80 00000003 b6eab000 00020000 00000000 [ 2203.819746] dfc0: 00000003 b6f10f80 7ff00000 00000003 00000003 00000000 00020000 00000000 [ 2203.826619] dfe0: b6e1bc88 bed80958 b6e1bc94 b6e1bcb0 [ 2203.830363] Code: bad PC value [ 2203.832695] ---[ end trace 0000000000000000 ]---

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0cc7e0ee31e5c44904e98e2229d591e093282a70 Patch
https://git.kernel.org/stable/c/72f022ebb9deac28663fa4c04ba315ed5d6654d1 Patch
https://git.kernel.org/stable/c/c4ec8dedca961db056ec85cb7ca8c9f7e2e92252 Patch
https://git.kernel.org/stable/c/dc537a72f64890d883d24ae4ac58733fc5bc523d Patch
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:*:*:*:*:*:*:*:*
History

08 Jan 2025, 21:30

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-476
References () https://git.kernel.org/stable/c/0cc7e0ee31e5c44904e98e2229d591e093282a70 - () https://git.kernel.org/stable/c/0cc7e0ee31e5c44904e98e2229d591e093282a70 - Patch
References () https://git.kernel.org/stable/c/72f022ebb9deac28663fa4c04ba315ed5d6654d1 - () https://git.kernel.org/stable/c/72f022ebb9deac28663fa4c04ba315ed5d6654d1 - Patch
References () https://git.kernel.org/stable/c/c4ec8dedca961db056ec85cb7ca8c9f7e2e92252 - () https://git.kernel.org/stable/c/c4ec8dedca961db056ec85cb7ca8c9f7e2e92252 - Patch
References () https://git.kernel.org/stable/c/dc537a72f64890d883d24ae4ac58733fc5bc523d - () https://git.kernel.org/stable/c/dc537a72f64890d883d24ae4ac58733fc5bc523d - Patch

20 Sep 2024, 12:30

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: driver: iio: agregar comprobaciones faltantes en el acceso a la devolución de llamada de iio_info Se accede a algunas devoluciones de llamadas de la estructura iio_info sin ninguna comprobación, por lo que si un controlador no las implementa, intentar acceder a las entradas sysfs correspondientes produce un error de kernel como: [ 2203.527791] No se puede manejar la desreferencia del puntero NULL del kernel en la dirección virtual 00000000 cuando se ejecuta [...] [ 2203.783416] Rastreo de llamadas: [ 2203.783429] iio_read_channel_info_avail de dev_attr_show+0x18/0x48 [ 2203.789807] dev_attr_show de sysfs_kf_seq_show+0x90/0x120 [ 2203.794181] sysfs_kf_seq_show de seq_read_iter+0xd0/0x4e4 [ 2203.798555] seq_read_iter de vfs_read+0x238/0x2a0 [ 2203.802236] vfs_read de ksys_read+0xa4/0xd4 [ 2203.805385] ksys_read de ret_fast_syscall+0x0/0x54 [ 2203.809135] Pila de excepciones (0xe0badfa8 a 0xe0badff0) [ 2203.812880] dfa0: 00000003 b6f10f80 00000003 b6eab000 00020000 00000000 [ 2203.819746] dfc0: 00000003 b6f10f80 7ff00000 00000003 00000003 00000000 00020000 00000000 [ 2203.826619] dfe0: b6e1bc88 bed80958 b6e1bc94 b6e1bcb0 [ 2203.830363] Código: valor de PC incorrecto [ 2203.832695] ---[ fin del seguimiento 000000000000000 ]---

18 Sep 2024, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-09-18 07:15

Updated : 2025-01-08 21:30

NVD link : CVE-2024-46715

Mitre link : CVE-2024-46715

CVE.ORG link : CVE-2024-46715

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference