CVE-2024-35939 Affecting kernel-debug-modules-extra package, versions *
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELDEBUGMODULESEXTRA-6945195
- published 21 May 2024
- disclosed 19 May 2024
Introduced: 19 May 2024
CVE-2024-35939 Open this link in a new tabHow to fix?
There is no fixed version for Centos:8 kernel-debug-modules-extra.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules-extra package and not the kernel-debug-modules-extra package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2024-35939
- 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