Vulnerability Description
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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.10.71 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/4664318f73e496cd22c71b10888e75434a123e23Mailing ListPatch
- https://git.kernel.org/stable/c/deb2949417677649e2413266d7ce8c2ff73952b4Mailing ListPatch
- https://git.kernel.org/stable/c/eb7511bf9182292ef1df1082d23039e856d1ddfbMailing ListPatch
- https://git.kernel.org/stable/c/4664318f73e496cd22c71b10888e75434a123e23Mailing ListPatch
- https://git.kernel.org/stable/c/deb2949417677649e2413266d7ce8c2ff73952b4Mailing ListPatch
- https://git.kernel.org/stable/c/eb7511bf9182292ef1df1082d23039e856d1ddfbMailing ListPatch
FAQ
What is CVE-2021-47407?
CVE-2021-47407 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 ...
How severe is CVE-2021-47407?
CVE-2021-47407 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47407?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.