CVE-2025-21988

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-21988
In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the `prev_donated` field, causing data corruption and a BUG() crash ("Can't donate prior to front").

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/62b9ad7e52d4777f7e775ee1f0ad2452f6041024 Patch
https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e Patch
https://git.kernel.org/stable/c/e2d46f2ec332533816417b60933954173f602121 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

04 Nov 2025, 18:56

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
CWE NVD-CWE-noinfo
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/62b9ad7e52d4777f7e775ee1f0ad2452f6041024 - () https://git.kernel.org/stable/c/62b9ad7e52d4777f7e775ee1f0ad2452f6041024 - Patch
References () https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e - () https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e - Patch
References () https://git.kernel.org/stable/c/e2d46f2ec332533816417b60933954173f602121 - () https://git.kernel.org/stable/c/e2d46f2ec332533816417b60933954173f602121 - Patch

10 Oct 2025, 17:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/62b9ad7e52d4777f7e775ee1f0ad2452f6041024 -
  • () https://git.kernel.org/stable/c/e2d46f2ec332533816417b60933954173f602121 -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/netfs/read_collect: agregar a next->prev_doned Si varias subsolicitudes donan datos a la misma solicitud "siguiente" (dependiendo del orden de finalización de las subsolicitudes), cada una de ellas sobrescribiría el campo `prev_doned`, lo que causaría corrupción de datos y un bloqueo de BUG() ("No se puede donar antes del front").

02 Apr 2025, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-04-02 13:15

Updated : 2025-11-04 18:56

NVD link : CVE-2025-21988

Mitre link : CVE-2025-21988

CVE.ORG link : CVE-2025-21988

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo