libceph: return the handler error from mon_handle_auth_done()
Published Jan 23, 2026
7.5
HIGHCVSS 3.1
EPSS 0.32%
Description
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().
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 5.11StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<5.11
- Version 5.15.198StatusunaffectedConstraints<=5.15.*
- Version 6.1.161StatusunaffectedConstraints<=6.1.*
- Version 6.12.66StatusunaffectedConstraints<=6.12.*
- Version 6.18.6StatusunaffectedConstraints<=6.18.*
- Version 6.19StatusunaffectedConstraints<=*
- Version 6.6.121StatusunaffectedConstraints<=6.6.*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| |||||||||||||||||||||||||||
| Linux | Linux | affected |
|
- ≥ 5.11 · < 5.15.198
- ≥ 5.16 · < 6.1.161
- ≥ 6.2 · < 6.6.121
- ≥ 6.7 · < 6.12.66
- ≥ 6.13 · < 6.18.6
- 6.19
- 6.19
- 6.19
- 6.19
No data.
Red Hat Enterprise Linux 10
kernel
Affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Affected
Red Hat Enterprise Linux 8
kernel-rt
Affected
Red Hat Enterprise Linux 9
kernel
Affected
Red Hat Enterprise Linux 9
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The monitor auth-done handler incorrectly returned success even when the authentication reply finalization reported an error, causing a state mismatch where msgr2 could continue session establishment in the background. In secure mode this can trigger a WARN and later a NULL pointer dereference in signature preparation, leading to a remote crash/DoS (network-reachable under a malicious/compromised monitor or MITM conditions).
References (12)
- https://access.redhat.com/security/cve/CVE-2026-22992 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2432387 Issue Tracking
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://git.kernel.org/stable/c/33908769248b38a5e77cf9292817bb28e641992d Patch
- https://git.kernel.org/stable/c/77229551f2cf72f3e35636db68e6a825b912cf16 Patch
- https://git.kernel.org/stable/c/9e0101e57534ef0e7578dd09608a6106736b82e5 Patch
- https://git.kernel.org/stable/c/d2c4a5f6996683f287f3851ef5412797042de7f1 Patch
- https://git.kernel.org/stable/c/e097cd858196b1914309e7e3d79b4fa79383754d Patch
- https://git.kernel.org/stable/c/e84b48d31b5008932c0a0902982809fbaa1d3b70 Patch
- https://lore.kernel.org/linux-cve-announce/2026012351-CVE-2026-22992-0607@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-22992
- https://www.cve.org/CVERecord?id=CVE-2026-22992
Change history (0)
No recorded changes yet.