CVE-2024-36913

Summary

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

Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails

In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues.

VMBus code could free decrypted pages if set_memory_encrypted()/decrypted() fails. Leak the pages if this happens.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf2f136c05fb6093818a3b3fefcba46231ac66a62 < 7f2afcbfe4f6b6047b5f68db5067b7321e5be125affected
LinuxLinuxf2f136c05fb6093818a3b3fefcba46231ac66a62 < 6123a4e8e25bd40cf44db14694abac00e6b664e6affected
LinuxLinuxf2f136c05fb6093818a3b3fefcba46231ac66a62 < e813a0fc2e597146e9cebea61ced9c796d4e308faffected
LinuxLinuxf2f136c05fb6093818a3b3fefcba46231ac66a62 < 03f5a999adba062456c8c818a683beb1b498983aaffected
LinuxLinux5.16affected
LinuxLinux0 < 5.16unaffected
LinuxLinux6.1.143 <= 6.1.*unaffected
LinuxLinux6.6.31 <= 6.6.*unaffected
LinuxLinux6.8.10 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References