CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.5. It affects Linux.
CVE
CVE-2021-47179
Severity
MEDIUM
CVSS
5.5
EPSS
0.23%
Linux
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() Commit de144ff4234f changes _pnfs_return_layout() to call pnfs_mark_matching_lsegs_return() passing NULL as the struct pnfs_layout_range argument. Unfortunately, pnfs_mark_matching_lsegs_return() doesn't check if we have a value here before dereferencing it, causing an oops. I'm able to hit this crash consistently when running connectathon basic tests on NFS v4.1/v4.2 against Ontap.
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