CVE-2024-35939
HighIn 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.
CVSS 3.1 score
7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
References
The following references provide additional information about CVE-2024-35939 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/4031b72ca747a1e6e9ae4fa729e765b43363d66a
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PatchKernel patch commithttps://git.kernel.org/stable/c/4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9
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PatchKernel patch commithttps://git.kernel.org/stable/c/b57326c96b7bc7638aa8c44e12afa2defe0c934c
Frequently asked questions
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What is CVE-2024-35939?
CVE-2024-35939 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . CVE-2024-35939 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2024-35939?
CVE-2024-35939 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. -
Is there a patch available for CVE-2024-35939?
No patch is currently available for CVE-2024-35939. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2024-35939 actively exploited?
No — CVE-2024-35939 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.