CVE-2024-40909
bpf: Fix a potential use-after-free in bpf_link_free()
Vexday Risk Score
3Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
12 jul 2024Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix a potential use-after-free in bpf_link_free()
After commit 1a80dbcb2dba, bpf_link can be freed by
link->ops->dealloc_deferred, but the code still tests and uses
link->ops->dealloc afterward, which leads to a use-after-free as
reported by syzbot. Actually, one of them should be sufficient, so
just call one of them instead of both. Also add a WARN_ON() in case
of any problematic implementation.
Productos afectados
Linux · Linux¿Quieres saber si tu infraestructura está expuesta a esto?
Hablar con TrueHacking →