CVE-2024-27069

Summary

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

ovl: relax WARN_ON in ovl_verify_area()

syzbot hit an assertion in copy up data loop which looks like it is the result of a lower file whose size is being changed underneath overlayfs.

This type of use case is documented to cause undefined behavior, so returning EIO error for the copy up makes sense, but it should not be causing a WARN_ON assertion.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxca7ab482401cf0a7497dad05f4918dc64115538b < c3c85aefc0da1e5074a06c682542a54ccc99bdcaaffected
LinuxLinuxca7ab482401cf0a7497dad05f4918dc64115538b < 77a28aa476873048024ad56daf8f4f17d58ee48eaffected
LinuxLinux6.8affected
LinuxLinux0 < 6.8unaffected
LinuxLinux6.8.2 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References