In the Linux kernel, the following vulnerability has been resolved:
libceph: remove debugfs files before client teardown
ceph_destroy_client() tears down the monitor client before removing the per-client debugfs files. A concurrent read of the monmap debugfs file can enter monmap_show() after ceph_monc_stop() has freed monc->monmap, triggering a use-after-free.
Remove the debugfs files before stopping the OSD and monitor clients. debugfs_remove() drains active handlers and prevents new accesses, so the debugfs callbacks can no longer race the rest of client teardown.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18-modules-extraUpgrade perf6.18-debuginfoUpgrade kernel6.18-debuginfoUpgrade bpftool6.12Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.18Upgrade kernel6.12-debuginfo-common-aarch64Upgrade bpftool6.18-debuginfoUpgrade kernel6.18-headersUpgrade python3-perf6.12Upgrade python3-perf6.12-debuginfoUpgrade kernel6.18-toolsUpgrade kernel6.12Upgrade perf6.12-debuginfoUpgrade kernel6.12-develUpgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.12-modules-extraUpgrade bpftool6.12-debuginfoUpgrade kernel6.12-debuginfoUpgrade kernel6.18-debuginfo-common-x86_64Upgrade bpftool6.18Upgrade kernel6.12-toolsUpgrade perf6.18Upgrade kernel6.12-headersUpgrade python3-perf6.18Upgrade kernel-livepatch-6.18.44-99.149Upgrade kernel6.12-tools-debuginfoUpgrade microvm-kernel6.18Upgrade kernel6.18-develUpgrade kernel6.12-tools-develUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18-tools-develUpgrade kernel6.18-tools-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade perf6.12Upgrade kernel6.18-modules-extra-commonUpgrade kernel-livepatch-6.12.103-127.188 | Sep 1, 2026 | Aug 10, 2026 |
| Debian | — | Upgrade linux-6.12Upgrade linux | Aug 11, 2026 | Aug 11, 2026 |
| Redhat_linux | — | No solution exists | Aug 13, 2026 | Aug 10, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 17, 2026 | Aug 10, 2026 |
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