Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f2f136c05fb6093818a3b3fefcba46231ac66a62 to < 7f2afcbfe4f6b6047b5f68db5067b7321e5be125affectedf2f136c05fb6093818a3b3fefcba46231ac66a62 to < 6123a4e8e25bd40cf44db14694abac00e6b664e6affectedf2f136c05fb6093818a3b3fefcba46231ac66a62 to < e813a0fc2e597146e9cebea61ced9c796d4e308faffectedf2f136c05fb6093818a3b3fefcba46231ac66a62 to < 03f5a999adba062456c8c818a683beb1b498983aaffected
Linux Linux
Default version status: affected
5.16affected0 to < 5.16unaffected6.1.143 to ≤ 6.1.*unaffected6.6.31 to ≤ 6.6.*unaffected6.8.10 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/7f2afcbfe4f6b6047b5f68db5067b7321e5be125 ↗
- https://git.kernel.org/stable/c/6123a4e8e25bd40cf44db14694abac00e6b664e6 ↗
- https://git.kernel.org/stable/c/e813a0fc2e597146e9cebea61ced9c796d4e308f ↗
- https://git.kernel.org/stable/c/03f5a999adba062456c8c818a683beb1b498983a ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗