CVE-2024-45027

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-45027
In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Check for xhci->interrupters being allocated in xhci_mem_clearup() If xhci_mem_init() fails, it calls into xhci_mem_cleanup() to mop up the damage. If it fails early enough, before xhci->interrupters is allocated but after xhci->max_interrupters has been set, which happens in most (all?) cases, things get uglier, as xhci_mem_cleanup() unconditionally derefences xhci->interrupters. With prejudice. Gate the interrupt freeing loop with a check on xhci->interrupters being non-NULL. Found while debugging a DMA allocation issue that led the XHCI driver on this exact path.

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/770cacc75b0091ece17349195d72133912c1ca7c Patch
https://git.kernel.org/stable/c/dcdb52d948f3a17ccd3fce757d9bd981d7c32039 Patch
Configurations

Configuration 1 (hide)

OR 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

13 Sep 2024, 16:29

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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 : 5.5
CWE CWE-459
References () https://git.kernel.org/stable/c/770cacc75b0091ece17349195d72133912c1ca7c - () https://git.kernel.org/stable/c/770cacc75b0091ece17349195d72133912c1ca7c - Patch
References () https://git.kernel.org/stable/c/dcdb52d948f3a17ccd3fce757d9bd981d7c32039 - () https://git.kernel.org/stable/c/dcdb52d948f3a17ccd3fce757d9bd981d7c32039 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: xhci: Comprueba que xhci->interrupters se asignen en xhci_mem_clearup() Si xhci_mem_init() falla, llama a xhci_mem_cleanup() para limpiar el daño. Si falla lo suficientemente pronto, antes de que se asigne xhci->interrupters pero después de que se haya establecido xhci->max_interrupters, lo que sucede en la mayoría (¿todos?) de los casos, las cosas se ponen peor, ya que xhci_mem_cleanup() desreferencia incondicionalmente a xhci->interrupters. Con prejuicio. Bloquea el bucle de liberación de interrupciones con una comprobación de que xhci->interrupters no sea NULL. Se encontró mientras se depuraba un problema de asignación de DMA que llevó al controlador XHCI por este camino exacto.

11 Sep 2024, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-09-11 16:15

Updated : 2024-09-13 16:29

NVD link : CVE-2024-45027

Mitre link : CVE-2024-45027

CVE.ORG link : CVE-2024-45027

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-459

Incomplete Cleanup