CVE-2026-22992

MEDIUM EPSS 18.4%
Published Jan 23, 20265mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jan 23, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

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().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
18.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥5.11  –  <5.15.198
linuxlinux_kernel*≥5.16  –  <6.1.161
linuxlinux_kernel*≥6.2  –  <6.6.121
linuxlinux_kernel*≥6.7  –  <6.12.66
linuxlinux_kernel*≥6.13  –  <6.18.6
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/33908769248b38a5e77cf9292817bb28e641992d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/77229551f2cf72f3e35636db68e6a825b912cf16
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9e0101e57534ef0e7578dd09608a6106736b82e5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d2c4a5f6996683f287f3851ef5412797042de7f1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e097cd858196b1914309e7e3d79b4fa79383754d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e84b48d31b5008932c0a0902982809fbaa1d3b70
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/33908769248b38a5e77cf9292817bb28e641992d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/77229551f2cf72f3e35636db68e6a825b912cf16
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9e0101e57534ef0e7578dd09608a6106736b82e5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d2c4a5f6996683f287f3851ef5412797042de7f1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e097cd858196b1914309e7e3d79b4fa79383754d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e84b48d31b5008932c0a0902982809fbaa1d3b70
    Patch