MEDIUM 5.5 Microsoft
CVE-2021-28951
An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread but concurrently that SQPOLL thread is waiting for a signal to start aka CID-3ebba796fa25.
Microsoft Security Update 2021-Mar: An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread but concurrently that SQPOLL thread is waiting for a signal to start aka CID-3ebba796fa25.
Affected Products
- cbl2 kernel 5.10.78.1-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-28951
- https://nvd.nist.gov/vuln/detail/CVE-2021-28951
This medium severity vulnerability with a CVSS score of 5.5 was published on 2021-03-09 via Microsoft. Affected: cbl2 kernel 5.10.78.1-1 on CBL Mariner 2.0.
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