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CVE-2021-47407

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CVE-2021-47407

Published: May 21, 2024

Modified: May 11, 2026

PUBLISHED

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]

VendorProductVersions

Linux

Linux

affected
0eb05bf290cfe8610d9680b49abef37febd1c38a - < deb2949417677649e2413266d7ce8c2ff73952b4
affected
0eb05bf290cfe8610d9680b49abef37febd1c38a - < 4664318f73e496cd22c71b10888e75434a123e23
affected
0eb05bf290cfe8610d9680b49abef37febd1c38a - < eb7511bf9182292ef1df1082d23039e856d1ddfb

Linux

Linux

affected
4.6
unaffected
0 - < 4.6
unaffected
5.10.71 - <= 5.10.*
unaffected
5.14.10 - <= 5.14.*
unaffected
5.15 - <= *

References

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