Bug 2230349
| Summary: | BLS snippets in /boot/loader/entries are improperly labeled with "module_object_t" SELinux context | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Renaud Métrich <rmetrich> |
| Component: | grub2 | Assignee: | Bootloader engineering team <bootloader-eng-team> |
| Status: | NEW --- | QA Contact: | Release Test Team <release-test-team> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | 8.8 | CC: | peter.vreman, sbarcomb |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | Bug | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Description of problem: When updating the kernel, the new BLS snippet gets "module_object_t label: -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- # ls -lZ /boot/loader/entries/ [...] -rw-r--r--. 1 root root system_u:object_r:modules_object_t:s0 371 Jun 29 17:25 9d59a9f41c1642b196990576ac8b7846-4.18.0-477.15.1.el8_8.x86_64.conf [...] -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- This is due to copying the "bls.conf" template from the kernel tree without using "-Z" option to "cp", as seen on line 94 of /usr/lib/kernel/install.d/20-grub.install: -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- 93 if [[ -f "${KERNEL_DIR}/bls.conf" ]]; then 94 cp -aT "${KERNEL_DIR}/bls.conf" "${BLS_TARGET}" || exit $? 95 else -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- Note that RHEL9 implements a different fix using "restorecon", on idea why this complicated code is used: -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- 65 rm -f "/boot/${i##*/}-${KERNEL_VERSION}" 66 cp -aT "$i" "/boot/${i##*/}-${KERNEL_VERSION}" 67 command -v restorecon &>/dev/null && \ 68 restorecon -R "/boot/${i##*/}-${KERNEL_VERSION}" -------- 8< ---------------- 8< ---------------- 8< ---------------- 8< -------- Version-Release number of selected component (if applicable): grub2-common-2.02-148.el8.noarch How reproducible: Always Steps to Reproduce: 1. Install a new kernel Actual results: Improper context Expected results: Proper "boot_t" context