Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-22992
Linux Linux — libceph: return the handler error from mon_handle_auth_done()
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0032 22.9 —
AFFECTED
Product Versions Fixed
Linux cd1a677cad994021b19665ed476aea63f5d54f31 – —
Linux 5.11 – 5.15.198
TIMELINE
Jan 13 Reserved by Linux
Jan 23 Published (CNA: Linux)
Oct 15 RESCORED — CVE-2026-22992 (Linux). CVSS 7.5 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
libceph: return the handler error from mon_handle_auth_done()
Currently any error from ceph_auth_handle_reply_done() is propagated
via finish_auth() but isn't returned from mon_handle_auth_done(). This
results in higher layers learning that (despite the monitor considering
us to be successfully authenticated) something went wrong in the
authentication phase and reacting accordingly, but msgr2 still trying
to proceed with establishing the session in the background. In the
case of secure mode this can trigger a WARN in setup_crypto() and later
lead to a NULL pointer dereference inside of prepare_auth_signature().
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| January 13, 2026 | Reserved | Reserved by Linux |
| January 23, 2026 | Published | Published (CNA: Linux) |
| October 15, 2026 | RESCORED | RESCORED — CVE-2026-22992 (Linux). CVSS 7.5 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | cd1a677cad994021b19665ed476aea63f5d54f31 | — |
| Linux | Linux | — | 5.11 | 5.15.198 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-22992 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.