CVE-2022-49967

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49967
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a data-race around bpf_jit_limit. While reading bpf_jit_limit, it can be changed concurrently via sysctl, WRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit is long, so we need to add a paired READ_ONCE() to avoid load-tearing.

4.7 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

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/0947ae1121083d363d522ff7518ee72b55bd8d29 Patch
https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292 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:6.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*
History

14 Nov 2025, 17:28

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Se corrige una ejecución de datos en torno a bpf_jit_limit. Al leer bpf_jit_limit, se puede modificar simultáneamente mediante sysctl, WRITE_ONCE() en __do_proc_doulongvec_minmax(). El tamaño de bpf_jit_limit es grande, por lo que es necesario añadir un par de READ_ONCE() para evitar la fragmentación de la carga.
CPE cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29 - () https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29 - Patch
References () https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292 - () https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.7
CWE CWE-362

18 Jun 2025, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-18 11:15

Updated : 2025-11-14 17:28

NVD link : CVE-2022-49967

Mitre link : CVE-2022-49967

CVE.ORG link : CVE-2022-49967

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')