CVE-2026-22992libceph: return the handler error from mon_handle_auth_done()
Updated under an hour ago ()
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It affects Linux and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from cd1a677cad994021b19665ed476aea63f5d54f31 before 77229551f2cf72f3e35636db68e6a825b912cf16; from cd1a677cad994021b19665ed476aea63f5d54f31 before 33908769248b38a5e77cf9292817bb28e641992d; from cd1a677cad994021b19665ed476aea63f5d54f31 before e097cd858196b1914309e7e3d79b4fa79383754d; from cd1a677cad994021b19665ed476aea63f5d54f31 before d2c4a5f6996683f287f3851ef5412797042de7f1; from cd1a677cad994021b19665ed476aea63f5d54f31 before 9e0101e57534ef0e7578dd09608a6106736b82e5; from cd1a677cad994021b19665ed476aea63f5d54f31 before e84b48d31b5008932c0a0902982809fbaa1d3b70 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.11 before 5.15.198; from 5.16 before 6.1.161; from 6.2 before 6.6.121; from 6.7 before 6.12.66; from 6.13 before 6.18.6; 6.19; 6.19; 6.19; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/77229551f2cf72f3e35636db68e6a825b912cf16patch
- https://git.kernel.org/stable/c/33908769248b38a5e77cf9292817bb28e641992dpatch
- https://git.kernel.org/stable/c/e097cd858196b1914309e7e3d79b4fa79383754dpatch
- https://git.kernel.org/stable/c/d2c4a5f6996683f287f3851ef5412797042de7f1patch
- https://git.kernel.org/stable/c/9e0101e57534ef0e7578dd09608a6106736b82e5patch
- https://git.kernel.org/stable/c/e84b48d31b5008932c0a0902982809fbaa1d3b70patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.