CVE-2024-35939: linux
Vulnerability summary
CVE-2024-35939 is a critical (CVSS 9.3) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 16 · Related 12Timeline
- 19-05-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.3CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HDiffers
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HDiffers
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
0.00 pp
From 0.22% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu111 products
- linuxAll versions (No fix recorded) | < 6.8.0-38.38
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1011.12
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 56fccf21d1961a06e2a0c96ce446ebf036651062, < 4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9 | ≥ 56fccf21d1961a06e2a0c96ce446ebf036651062, < 4031b72ca747a1e6e9ae4fa729e765b43363d66a | ≥ 56fccf21d1961a06e2a0c96ce446ebf036651062, < b57326c96b7bc7638aa8c44e12afa2defe0c934c | ≥ 56fccf21d1961a06e2a0c96ce446ebf036651062, < b9fa16949d18e06bdf728a560f5c8af56d2bdcaf | 91c7b0407ca6a62c095d265f76926b67bf66c026 | ≥ 5.7.7, < 5.8 | 5.8
- linux_kernel< 6.1.86 | ≥ 6.2, < 6.6.27 | ≥ 6.7, < 6.8.6
Debian1 product
- linux< 6.1.90-1 | < 6.8.9-1
3 vendors · 114 products