CVE-2021-47167

Summary

In the Linux kernel, the following vulnerability has been resolved:

NFS: Fix an Oopsable condition in __nfs_pageio_add_request()

Ensure that nfs_pageio_error_cleanup() resets the mirror array contents, so that the structure reflects the fact that it is now empty. Also change the test in nfs_pageio_do_add_request() to be more robust by checking whether or not the list is empty rather than relying on the value of pg_count.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa7d42ddb3099727f58366fa006f850a219cce6c8 < 1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3eaffected
LinuxLinuxa7d42ddb3099727f58366fa006f850a219cce6c8 < ee21cd3aa8548e0cbc8c67a80b62113aedd2d101affected
LinuxLinuxa7d42ddb3099727f58366fa006f850a219cce6c8 < 15ac6f14787649e8ebd75c142e2c5d2a243c8490affected
LinuxLinuxa7d42ddb3099727f58366fa006f850a219cce6c8 < 56517ab958b7c11030e626250c00b9b1a24b41ebaffected
LinuxLinux4.0affected
LinuxLinux0 < 4.0unaffected
LinuxLinux5.4.124 <= 5.4.*unaffected
LinuxLinux5.10.42 <= 5.10.*unaffected
LinuxLinux5.12.9 <= 5.12.*unaffected
LinuxLinux5.13 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References