CVE-2026-74592: ima: Instantiate file_truncate and path_truncate hooks
ima: Instantiate filetruncate and pathtruncate hooks
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1 - Upgrade
Upgrade
debian/linux-6.12to a version that resolves this vulnerability.Fixed in 6.12.113-1~deb12u1 - Upgrade
Upgrade
ubuntu/linux-nvidia-tegrato a version that resolves this vulnerability.Fixed in 6.8.0-1036.39
Event History
Frequently Asked Questions
What systems are exposed to this issue?
Systems using the Linux kernel with IMA policy that relies on file collection, measurement, auditing, or appraisal after a file is truncated may be affected. The issue concerns stale IMA action-cache flags following a truncation request.
What changes after the fix is applied?
The file_truncate and path_truncate LSM hooks reset IMA_DONE_MASK as soon as truncation is requested. On the next access, the file can be re-collected, re-measured, re-audited, and re-appraised according to policy.
How can administrators assess whether the issue matters in their environment?
Review whether IMA is enabled and whether its policy expects files to be measured, audited, or appraised after content-changing truncation operations. Environments not relying on those IMA policy actions for truncated files may have less direct exposure.