CVE-2026-98593

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Source
https://cve.org/CVERecord?id=CVE-2026-98593
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98593.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-98593
Downstream
Published
2026-10-18T15:19:05Z
Modified
2026-10-19T02:46:50Z
Summary
s390/debug: Fix NULL pointer dereference in debug_info_copy()
Details

In 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.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98593.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d72541f945127b4873dace501406a1bc8cd8e1e9
Fixed
13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225
Fixed
a19bede30f0da5ae56782edac62b5998a7434cba
Fixed
33f706884821da9cb55b650b7b1d4f2bdf800137
Fixed
2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b
Fixed
9c6af88fbefbe77608b77409df23a1617e28398c
Fixed
c593f38e1cdb92f87d01be4c4e5ac12417b1454b
Fixed
012bfcd5a51082d5a65f096dfb9ca652b5267965

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98593.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.15.0
Fixed
5.15.222
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.189
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.158
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.112
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.55
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98593.json"