CVE-2022-48816

Summary

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

SUNRPC: lock against ->sock changing during sysfs read

->sock can be set to NULL asynchronously unless ->recv_mutex is held. So it is important to hold that mutex. Otherwise a sysfs read can trigger an oops. Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before handling sysfs reads") appears to attempt to fix this problem, but it only narrows the race window.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa8482488a7d6d320f63a9ee1912dbb5ae5b80a61 < fdc42287ae3f8a35cc2098307f52d7864b4bc8edaffected
LinuxLinuxa8482488a7d6d320f63a9ee1912dbb5ae5b80a61 < 9482ab4540f5bcc869b44c067ae99b5fca16bd07affected
LinuxLinuxa8482488a7d6d320f63a9ee1912dbb5ae5b80a61 < b49ea673e119f59c71645e2f65b3ccad857c90eeaffected
LinuxLinux21a2be1a5145d072deedc7cdc5b2d17380abea75affected
LinuxLinux77876473912d1bf1ed16bffa1674e5ff0f499f25affected
LinuxLinux5.10.67 < 5.11affected
LinuxLinux5.13.19 < 5.14affected
LinuxLinux5.14affected
LinuxLinux0 < 5.14unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux5.16.10 <= 5.16.*unaffected
LinuxLinux5.17 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References