CVE-2026-89653
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ceph: reject export_targets ranks >= CEPH_MAX_MDS in mdsmap decode
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| d517b3983dd3106ca92d6c5d0d09415a4a09481c | affected | git | 3740c88ca9cb2210a8dbdd55ea4cec119fbe86fe | Unavailable | None listed |
| d517b3983dd3106ca92d6c5d0d09415a4a09481c | affected | git | 8c823bbab3c24e657469a84db96902ba82d4e8bb | Unavailable | None listed |
| d517b3983dd3106ca92d6c5d0d09415a4a09481c | affected | git | c4addccd05bacbef2144b4db14853d0308a218ac | Unavailable | None listed |
| d517b3983dd3106ca92d6c5d0d09415a4a09481c | affected | git | 736adee11af36e407ed902264f8b2fb5cf94b62f | Unavailable | None listed |
| d517b3983dd3106ca92d6c5d0d09415a4a09481c | affected | git | 4d298880f82c42383b36946bafde7ccf4d804c9b | Unavailable | None listed |
| d517b3983dd3106ca92d6c5d0d09415a4a09481c | affected | git | 96c3f5fbb0d5386e7111426f047f98cec4586674 | Unavailable | None listed |
| d517b3983dd3106ca92d6c5d0d09415a4a09481c | affected | git | aedc9053d909508a5f56c3f49f885fc030df4730 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.15 | Unavailable | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.109 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.50 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.4 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |