CVE-2022-49413

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49413
In the Linux kernel, the following vulnerability has been resolved: bfq: Update cgroup information before merging bio When the process is migrated to a different cgroup (or in case of writeback just starts submitting bios associated with a different cgroup) bfq_merge_bio() can operate with stale cgroup information in bic. Thus the bio can be merged to a request from a different cgroup or it can result in merging of bfqqs for different cgroups or bfqqs of already dead cgroups and causing possible use-after-free issues. Fix the problem by updating cgroup information in bfq_merge_bio().

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2a1077f17169a6059992a0bbdb330e0abad1e6d9 Patch
https://git.kernel.org/stable/c/b06691af08b41dfd81052a3362514d9827b44bb1 Patch
https://git.kernel.org/stable/c/d9165200c5627a2cf4408eefabdf0058bdf95e1a Patch
https://git.kernel.org/stable/c/da9f3025d595956410ceaab2bea01980d7775948 Patch
https://git.kernel.org/stable/c/e8821f45612f2e6d9adb9c6ba0fb4184f57692aa Patch
https://git.kernel.org/stable/c/ea591cd4eb270393810e7be01feb8fde6a34fbbe 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

24 Mar 2025, 19:52

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/2a1077f17169a6059992a0bbdb330e0abad1e6d9 - () https://git.kernel.org/stable/c/2a1077f17169a6059992a0bbdb330e0abad1e6d9 - Patch
References () https://git.kernel.org/stable/c/b06691af08b41dfd81052a3362514d9827b44bb1 - () https://git.kernel.org/stable/c/b06691af08b41dfd81052a3362514d9827b44bb1 - Patch
References () https://git.kernel.org/stable/c/d9165200c5627a2cf4408eefabdf0058bdf95e1a - () https://git.kernel.org/stable/c/d9165200c5627a2cf4408eefabdf0058bdf95e1a - Patch
References () https://git.kernel.org/stable/c/da9f3025d595956410ceaab2bea01980d7775948 - () https://git.kernel.org/stable/c/da9f3025d595956410ceaab2bea01980d7775948 - Patch
References () https://git.kernel.org/stable/c/e8821f45612f2e6d9adb9c6ba0fb4184f57692aa - () https://git.kernel.org/stable/c/e8821f45612f2e6d9adb9c6ba0fb4184f57692aa - Patch
References () https://git.kernel.org/stable/c/ea591cd4eb270393810e7be01feb8fde6a34fbbe - () https://git.kernel.org/stable/c/ea591cd4eb270393810e7be01feb8fde6a34fbbe - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bfq: Actualizar la información del cgroup antes de fusionar bio Cuando el proceso se migra a un cgroup diferente (o en caso de escritura diferida simplemente comienza a enviar bios asociados con un cgroup diferente) bfq_merge_bio() puede operar con información de cgroup obsoleta en bic. Por lo tanto, la bio se puede fusionar con una solicitud de un cgroup diferente o puede resultar en la fusión de bfqqs para diferentes cgroups o bfqqs de cgroups ya inactivos y causar posibles problemas de use-after-free. Solucione el problema actualizando la información del cgroup en bfq_merge_bio().

27 Feb 2025, 19:15

Type Values Removed Values Added
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8

26 Feb 2025, 07:01

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:01

Updated : 2025-03-24 19:52

NVD link : CVE-2022-49413

Mitre link : CVE-2022-49413

CVE.ORG link : CVE-2022-49413

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free