Vulnerability Details : CVE-2021-47407
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]
Products affected by CVE-2021-47407
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Exploit prediction scoring system (EPSS) score for CVE-2021-47407
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 9 %
Percentile, the proportion of vulnerabilities that are scored at or less
References for CVE-2021-47407
-
https://git.kernel.org/stable/c/deb2949417677649e2413266d7ce8c2ff73952b4
KVM: x86: Handle SRCU initialization failure during page track init - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/4664318f73e496cd22c71b10888e75434a123e23
KVM: x86: Handle SRCU initialization failure during page track init - kernel/git/stable/linux.git - Linux kernel stable tree
-
https://git.kernel.org/stable/c/eb7511bf9182292ef1df1082d23039e856d1ddfb
KVM: x86: Handle SRCU initialization failure during page track init - kernel/git/stable/linux.git - Linux kernel stable tree
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