AZL-100418
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-100418.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-100418
- Upstream
- Published
- 2026-09-11T20:19:51Z
- Modified
- 2026-09-13T06:06:36Z
- Summary
- CVE-2026-89653 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ceph: reject export_targets ranks >= CEPH_MAX_MDS in mdsmap decode
MDSMap export_targets entries are monitor controlled. check_new_map() uses each entry as a bit number in a fixed stack bitmap, so a rank outside the protocol namespace can make set_bit() write past the end of the array.
Reject ranks outside CEPH_MAX_MDS while decoding the map. Do not validate against possible_max_rank here because maps may legitimately reference ranks beyond a temporarily reduced max_mds.
- References