CVE-2022-49967
Full vulnerability record from the local CVENow database.
Description
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.
Severity
MEDIUM
CVSS score
4.7
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-06-18 11:15:24.013000
Last modified
2026-11-05 20:17:19.047000
View original CVE JSON
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-06-18T11:15:24.013",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix a data-race around bpf_jit_limit.\n\nWhile reading bpf_jit_limit, it can be changed concurrently via sysctl,\nWRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit\nis long, so we need to add a paired READ_ONCE() to avoid load-tearing."
},
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"value": "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."
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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