CVSS 3.1
7.1 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HCVE-2024-35939
High (7.1) in linux linux kernel. EPSS 0.2% chance of exploitation in the next 30 days.
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/shared pages if dma_set_decrypted() fails. This
should be a rare case. Just leak the pages in this case instead of
freeing them.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- https://git.kernel.org/stable/c/4031b72ca747a1e6e9ae4fa729e765b43363d66a
- https://git.kernel.org/stable/c/4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9
- https://git.kernel.org/stable/c/b57326c96b7bc7638aa8c44e12afa2defe0c934c
- https://git.kernel.org/stable/c/b9fa16949d18e06bdf728a560f5c8af56d2bdcaf
- https://git.kernel.org/stable/c/4031b72ca747a1e6e9ae4fa729e765b43363d66a