CVE-2026-98593
N/AIn the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix NULL pointer dereference in debug_info_copy() When debug_register_static() fails, it clears areas, active_pages and active_entries but leaves the area bounds unchanged. Copying such an area, either by opening its view file or via debug_dump(), makes debug_info_copy() dereference the NULL pointers. Skip the copy loop when the source has no areas.
NO EXPLOITATION SIGNALS
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 6th percentile
○ In CISA KEV
○ Public exploit / PoC
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-98593/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-98593/poc.json
References
Technical & other
- https://git.kernel.org/stable/c/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225
- https://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba
- https://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137
- https://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b
- https://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c
- https://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b
- https://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965