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Change History

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

dma-direct: Leak pages on dma_set_decrypted() failure

On TDX 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.

DMA could free decrypted/shar

kernel.org https://git.kernel.org/stable/c/4031b72ca747a1e6e9ae4fa729e765b43363d66a [No types assigned]

kernel.org https://git.kernel.org/stable/c/4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9 [No types assigned]

kernel.org https://git.kernel.org/stable/c/b57326c96b7bc7638aa8c44e12afa2defe0c934c [No types assigned]

kernel.org https://git.kernel.org/stable/c/b9fa16949d18e06bdf728a560f5c8af56d2bdcaf [No types assigned]