CVE-2024-47143

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-47143
In the Linux kernel, the following vulnerability has been resolved: dma-debug: fix a possible deadlock on radix_lock radix_lock() shouldn't be held while holding dma_hash_entry[idx].lock otherwise, there's a possible deadlock scenario when dma debug API is called holding rq_lock(): CPU0 CPU1 CPU2 dma_free_attrs() check_unmap() add_dma_entry() __schedule() //out (A) rq_lock() get_hash_bucket() (A) dma_entry_hash check_sync() (A) radix_lock() (W) dma_entry_hash dma_entry_free() (W) radix_lock() // CPU2's one (W) rq_lock() CPU1 situation can happen when it extending radix tree and it tries to wake up kswapd via wake_all_kswapd(). CPU2 situation can happen while perf_event_task_sched_out() (i.e. dma sync operation is called while deleting perf_event using etm and etr tmc which are Arm Coresight hwtracing driver backends). To remove this possible situation, call dma_entry_free() after put_hash_bucket() in check_unmap().

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/3ccce34a5c3f5c9541108a451657ade621524b32 Patch
https://git.kernel.org/stable/c/7543c3e3b9b88212fcd0aaf5cab5588797bdc7de Patch
https://git.kernel.org/stable/c/8c1b4fea8d62285f5e1a8194889b39661608bd8a Patch
https://git.kernel.org/stable/c/c212d91070beca0d03fef7bf988baf4ff4b3eee4 Patch
https://git.kernel.org/stable/c/efe1b9bbf356357fdff0399af361133d6e3ba18e Patch
https://git.kernel.org/stable/c/f2b95248a16c5186d1c658fc0aeb2f3bd95e5259 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

03 Feb 2025, 15:15

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dma-debug: corrige un posible bloqueo en radix_lock radix_lock() no se debe mantener mientras se mantiene dma_hash_entry[idx].lock de lo contrario, existe un posible escenario de bloqueo cuando se llama a la API de depuración de dma manteniendo rq_lock(): CPU0 CPU1 CPU2 dma_free_attrs() check_unmap() add_dma_entry() __schedule() //out (A) rq_lock() get_hash_bucket() (A) dma_entry_hash check_sync() (A) radix_lock() (W) dma_entry_hash dma_entry_free() (W) radix_lock() // El único rq_lock() de CPU2 (W) La situación de CPU1 puede ocurrir cuando extiende el árbol de radix e intenta despertar a kswapd a través de wake_all_kswapd(). La situación de CPU2 puede ocurrir mientras se ejecuta perf_event_task_sched_out() (es decir, se llama a la operación de sincronización de dma mientras se elimina perf_event usando etm y etr tmc, que son backends del controlador hwtracing de Arm Coresight). Para eliminar esta posible situación, llame a dma_entry_free() después de put_hash_bucket() en check_unmap().
CWE CWE-667
References () https://git.kernel.org/stable/c/3ccce34a5c3f5c9541108a451657ade621524b32 - () https://git.kernel.org/stable/c/3ccce34a5c3f5c9541108a451657ade621524b32 - Patch
References () https://git.kernel.org/stable/c/7543c3e3b9b88212fcd0aaf5cab5588797bdc7de - () https://git.kernel.org/stable/c/7543c3e3b9b88212fcd0aaf5cab5588797bdc7de - Patch
References () https://git.kernel.org/stable/c/8c1b4fea8d62285f5e1a8194889b39661608bd8a - () https://git.kernel.org/stable/c/8c1b4fea8d62285f5e1a8194889b39661608bd8a - Patch
References () https://git.kernel.org/stable/c/c212d91070beca0d03fef7bf988baf4ff4b3eee4 - () https://git.kernel.org/stable/c/c212d91070beca0d03fef7bf988baf4ff4b3eee4 - Patch
References () https://git.kernel.org/stable/c/efe1b9bbf356357fdff0399af361133d6e3ba18e - () https://git.kernel.org/stable/c/efe1b9bbf356357fdff0399af361133d6e3ba18e - Patch
References () https://git.kernel.org/stable/c/f2b95248a16c5186d1c658fc0aeb2f3bd95e5259 - () https://git.kernel.org/stable/c/f2b95248a16c5186d1c658fc0aeb2f3bd95e5259 - Patch

11 Jan 2025, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-01-11 13:15

Updated : 2025-02-03 15:15

NVD link : CVE-2024-47143

Mitre link : CVE-2024-47143

CVE.ORG link : CVE-2024-47143

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-667

Improper Locking