In the Linux kernel, the following vulnerability has been resolved:
libceph: guard missing CRUSH type name lookup
Localized read selection can walk a parent bucket whose name exists in the CRUSH map while its type has no matching entry in type_names. get_immediate_parent() then dereferences a NULL type_cn and passes an invalid pointer into strcmp(), causing a null-ptr-deref.
Skip such malformed parent buckets unless both the bucket name and type name metadata are present. This keeps malformed hierarchy data from crashing locality lookup and safely falls back to "not local".
[ idryomov: add WARN_ON_ONCE ]
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade python3-perf6.12Upgrade perf6.12-debuginfoUpgrade kernel6.12-toolsUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-debuginfo-common-x86_64Upgrade python3-perf6.12-debuginfoUpgrade kernel6.12-develUpgrade bpftool6.12-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-modules-extraUpgrade kernel6.12-modules-extra-commonUpgrade kernel-livepatch-6.12.103-127.188Upgrade kernel6.12-headersUpgrade bpftool6.12Upgrade perf6.12Upgrade kernel6.12-debuginfoUpgrade kernel6.12Upgrade kernel6.12-tools-devel | Sep 1, 2026 | Aug 10, 2026 |
| Debian | — | Upgrade linuxUpgrade linux-6.12 | Aug 11, 2026 | Aug 11, 2026 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | 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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