Description
As an inadvertent side effect of an unrelated code change, PRIV_KTRACE was always denied to a jailed root user. Tracing configured by a jailed root user was therefore not flagged as privileged. An unprivileged user in a jail that has permission to debug the target process can modify the jailed root user-s ktrace(2) flags, or disable tracing outright. A jailed root user therefore cannot reliably trace unprivileged processes.
CVSS 8.1EPSS 0.259%Risk 0.83
View source- Published
- 2026-08-19 08:17:12
- Affected versions
- unknown
- Type
- Kernel
- Last modified
- 2026-08-27 17:18:53
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H