s390/boot: Avoid IPL parameter append past command line (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.21 % · percentile 11 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: s390/boot: Avoid IPL parameter append past command line A command line may occupy all but the terminating byte of COMMAND_LINE_SIZE. In that case append_ipl_block_parm() passes a zero size to the IPL parameter conversion helpers and points the destination one byte past early_command_line. The helpers subtract one from the unsigned size and write the converted parameter outside the command line buffer. Convert the IPL parameter in the command line parsing buffer first. A parameter beginning with '=' can then replace the existing command line regardless of its length, while other parameters are appended only when space remains.
References
European references
- ENISA EUVD · EUVD-2026-101052
- GCVE · GCVE-0-2026-98403
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1374 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 5ecb2da660ab8eddafe059a6a8a708465db89ca2 < af9866021a00ab9eeacf0c33ee73f3d134b4ed70 ; affected 5ecb2da660ab8eddafe059a6a8a708465db89ca2 < 73eec5a0d55916d7e1115f5d03a7ffc06d6215cf ; affected 5ecb2da660ab8eddafe059a6a8a708465db89ca2 < 8d11bfec8666f8409fac9072e9c25b691d3e30ac ; affected 5ecb2da660ab8eddafe059a6a8a708465db89ca2 < d76181dfabdaa720703167393704efacba343442 |
| Linux · Linux | affected 5.16 ; unaffected 0 < 5.16 ; unaffected 6.12.112 ≤ 6.12.* ; unaffected 6.18.53 ≤ 6.18.* ; unaffected 7.2.7 ≤ 7.2.* ; unaffected 7.3 ≤ * |
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 |