iommu/vt-d: Force requesting ACS when tboot is enabled
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.157, 6.12.109, 6.18.50, 7.2.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Force requesting ACS when tboot is enabled Currently the conditions of requesting ACS in detect_intel_iommu() don't include tboot, leading to a possible misconfiguration with ACS disabled (e.g. due to user opts) while iommu is later forced on by tboot_force_iommu(). Fix it by checking tboot in detect_intel_iommu().
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 5d990b627537e59a3a2f039ff588a4750e9c1a6a · fixed in 579eb867d3da63f3b5e32f235925e1daa7ec70d0; From 5d990b627537e59a3a2f039ff588a4750e9c1a6a · fixed in aaeb81241e802c86be69394f72d49fde3f861fbb; From 5d990b627537e59a3a2f039ff588a4750e9c1a6a · fixed in 45705a6bfdb283f7b3b509010fd617b72f942537; From 5d990b627537e59a3a2f039ff588a4750e9c1a6a · fixed in 87bc611c6c98a41c00feb7b06b0c297dd141a2ae; From 5d990b627537e59a3a2f039ff588a4750e9c1a6a · fixed in 607432b2618b61df81134be0ef2562b8300c1216
- Linux Linux
2.6.33
- KernelLinux
From 2.6.33 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.109; From 6.13.0 · fixed in 6.18.50; From 6.19.0 · fixed in 7.2.4