s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str() The channel path registry entry associated with a CHPID may be removed while the subchannel's PMCW still references that CHPID. In this case, chpid_to_chp() can return NULL, leading to a NULL pointer dereference. Add the missing NULL check before dereferencing the returned pointer.
References
- https://git.kernel.org/stable/c/9d8b21820caed9128945fffcedf03e2a4c21eee2
- https://git.kernel.org/stable/c/5fc54e04dad90b15d0430118b3f288a1d64e66c9
- https://git.kernel.org/stable/c/27e396a89f76f742abdbe9f8c4a58a6e806fdf59
- https://git.kernel.org/stable/c/dbf30e661ceb9a52c94c85719716391dcc29142a
- https://git.kernel.org/stable/c/5e006ac90a4d331db1dd712b91fec849b45ffc01
- https://git.kernel.org/stable/c/c3bbcb32deecc06ebb1762398399b566d5ff2fc9
- https://git.kernel.org/stable/c/44b16b02608058fc72198ac0205969f0f43065df
- https://git.kernel.org/stable/c/5b76268dac968612f7283d59b539036de955b7d9
European references
- ENISA EUVD · EUVD-2026-103716
- GCVE · GCVE-0-2026-98476
CERT-FR advisories
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 199652309a4d6635fca19d7528d73ab9e219bd9a < 9d8b21820caed9128945fffcedf03e2a4c21eee2 ; affected 199652309a4d6635fca19d7528d73ab9e219bd9a < 5fc54e04dad90b15d0430118b3f288a1d64e66c9 ; affected 199652309a4d6635fca19d7528d73ab9e219bd9a < 27e396a89f76f742abdbe9f8c4a58a6e806fdf59 ; affected 199652309a4d6635fca19d7528d73ab9e219bd9a < dbf30e661ceb9a52c94c85719716391dcc29142a ; affected 199652309a4d6635fca19d7528d73ab9e219bd9a < 5e006ac90a4d331db1dd712b91fec849b45ffc01 ; affected 199652309a4d6635fca19d7528d73ab9e219bd9a < c3bbcb32deecc06ebb1762398399b566d5ff2fc9 |
| Linux · Linux | affected 4.18 ; unaffected 0 < 4.18 ; unaffected 5.10.271 ≤ 5.10.* ; unaffected 5.15.222 ≤ 5.15.* ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 6.6.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |