CVE-2024-35920

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-35920
In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: adding lock to protect decoder context list Add a lock for the ctx_list, to avoid accessing a NULL pointer within the 'vpu_dec_ipi_handler' function when the ctx_list has been deleted due to an unexpected behavior on the SCP IP block. Hardware name: Google juniper sku16 board (DT) pstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--) pc : vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec] lr : scp_ipi_handler+0xd0/0x194 [mtk_scp] sp : ffffffc0131dbbd0 x29: ffffffc0131dbbd0 x28: 0000000000000000 x27: ffffff9bb277f348 x26: ffffff9bb242ad00 x25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4 x23: ffffff9bb7fe85a0 x22: ffffffc0133fbdb0 x21: 0000000000000010 x20: ffffff9b050ea328 x19: ffffffc0131dbc08 x18: 0000000000001000 x17: 0000000000000000 x16: ffffffd2d461c6e0 x15: 0000000000000242 x14: 000000000000018f x13: 000000000000004d x12: 0000000000000000 x11: 0000000000000001 x10: fffffffffffffff0 x9 : ffffff9bb6e793a8 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : fffffffffffffff0 x3 : 0000000000000020 x2 : ffffff9bb6e79080 x1 : 0000000000000010 x0 : ffffffc0131dbc08 Call trace: vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)] scp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)] mt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)] scp_irq_handler+0x48/0x90 [mtk_scp (HASH:7046 3)] irq_thread_fn+0x38/0x94 irq_thread+0x100/0x1c0 kthread+0x140/0x1fc ret_from_fork+0x10/0x30 Code: 54000088 f94ca50a eb14015f 54000060 (f9400108) ---[ end trace ace43ce36cbd5c93 ]--- Kernel panic - not syncing: Oops: Fatal exception SMP: stopping secondary CPUs Kernel Offset: 0x12c4000000 from 0xffffffc010000000 PHYS_OFFSET: 0xffffffe580000000 CPU features: 0x08240002,2188200c Memory Limit: none

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/0a2dc707aa42214f9c4827bd57e344e29a0841d6 Mailing List Patch
https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38 Mailing List Patch
https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382 Mailing List Patch
https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6 Mailing List Patch
https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38 Mailing List Patch
https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382 Mailing List 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:6.9:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
History

17 Jun 2026, 07:35

Type Values Removed Values Added
CWE CWE-476
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6 - () https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6 - Mailing List, Patch
References () https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38 - () https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38 - Mailing List, Patch
References () https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382 - () https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382 - Mailing List, Patch

21 Nov 2024, 09:21

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6 - () https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6 -
References () https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38 - () https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38 -
References () https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382 - () https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382 -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: mediatek: vcodec: agregar bloqueo para proteger la lista de contexto del decodificador. Agregue un bloqueo para ctx_list, para evitar acceder a un puntero NULL dentro de la función 'vpu_dec_ipi_handler' cuando se ha eliminado ctx_list debido a un comportamiento inesperado en el bloque de IP de SCP. Nombre del hardware: placa Google Juniper sku16 (DT) pstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--) pc: vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec] lr: scp_ipi_handler+0xd0/0x194 [mtk_scp] sp: 31dbbd0 x29: ffffffc0131dbbd0 x28: 0000000000000000 x27: ffffff9bb277f348 x26: ffffff9bb242ad00 x25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4 x23: ffffff9bb7fe85a0 22: ffffffc0133fbdb0 x21: 0000000000000010 x20: ffffff9b050ea328 x19: ffffffc0131dbc08 x18: 0000000000001000 x17: 0000000000000000 x16: 461c6e0 x15: 0000000000000242 x14: 000000000000018f x13: 000000000000004d x12: 0000000000000000 x11: 0000000000000001 x10: fffffffffffffff0 x9: ffffff9bb6e793a8 x8: 0000000000000000 x7: 00000000000 00000 x6: 000000000000003f x5: 0000000000000040 x4: fffffffffffffff0 x3: 0000000000000020 x2: ffffff9bb6e79080 x1: 0000000000000010 x0: ffffffc013 1dbc08 Rastreo de llamadas: vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)] scp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)] mt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)] scp_irq_handler+0x48/0x90 (HASH:7046 3)] irq_thread_fn +0x38/0x94 irq_thread+0x100/0x1c0 kthread+0x140/0x1fc ret_from_fork+0x10/0x30 Código: 54000088 f94ca50a eb14015f 54000060 (f9400108) ---[ end trace ace43ce36cbd5c93 ] --- Pánico del kernel: no se sincroniza: Ups: excepción fatal SMP : detener CPU secundarias Desplazamiento del kernel: 0x12c4000000 de 0xffffffc010000000 PHYS_OFFSET: 0xffffffe580000000 Características de la CPU: 0x08240002,2188200c Límite de memoria: ninguno

19 May 2024, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-19 11:15

Updated : 2026-06-17 07:35

NVD link : CVE-2024-35920

Mitre link : CVE-2024-35920

CVE.ORG link : CVE-2024-35920

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference