CVE-2021-47407
KVM: x86: Handle SRCU initialization failure during page track init
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Handle SRCU initialization failure during page track init Check the return of init_srcu_struct(), which can fail due to OOM, when
initializing the page track mechanism. Lack of checking leads to a NULL
pointer deref found by a modified syzkaller. [Move the call towards the beginning of kvm_arch_init_vm. - Paolo]
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: KVM: x86: Manejar el error de inicialización de SRCU durante el inicio del seguimiento de la página. Verifique el retorno de init_srcu_struct(), que puede fallar debido a OOM, al inicializar el mecanismo de seguimiento de la página. La falta de verificación conduce a un puntero NULL deref encontrado por un syzkaller modificado. [Mueva la llamada hacia el principio de kvm_arch_init_vm. -Paolo]
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Handle SRCU initialization failure during page track init Check the return of init_srcu_struct(), which can fail due to OOM, when initializing the page track mechanism. Lack of checking leads to a NULL pointer deref found by a modified syzkaller. [Move the call towards the beginning of kvm_arch_init_vm. - Paolo]
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-05-21 CVE Reserved
- 2024-05-21 CVE Published
- 2024-12-19 CVE Updated
- 2025-03-29 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (3)
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 5.10.71 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.71" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 5.14.10 Search vendor "Linux" for product "Linux Kernel" and version " < 5.14.10" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 5.15 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15" | en |
Affected
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