01 Record

CVE-2026-98593

s390/debug: Fix NULL pointer dereference in debug_info_copy()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

s390/debug: Fix NULL pointer dereference in debug_info_copy()

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.17% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 6.6% of scored records. A rank, not a probability.
NVD base score: The NVD has published no score for this record
NVD CVSS vector: No NVD score to derive
NVD analysis status: Received. NVD last modified this record on 2026-10-19.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-10-18 15:19Z10 DAYS AGO

Last updated

2026-10-19 09:22Z10 DAYS AGO

Reserved

2026-09-25

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

cff635247eccba710abc8a81027518f7d461a68c6fd9b7746bd0ff4963d6c71d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxd72541f945127b4873dace501406a1bc8cd8e1e9 to < 13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225, d72541f945127b4873dace501406a1bc8cd8e1e9 to < a19bede30f0da5ae56782edac62b5998a7434cba, d72541f945127b4873dace501406a1bc8cd8e1e9 to < 33f706884821da9cb55b650b7b1d4f2bdf800137, d72541f945127b4873dace501406a1bc8cd8e1e9 to < 2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b, d72541f945127b4873dace501406a1bc8cd8e1e9 to < 9c6af88fbefbe77608b77409df23a1617e28398c, d72541f945127b4873dace501406a1bc8cd8e1e9 to < c593f38e1cdb92f87d01be4c4e5ac12417b1454b, d72541f945127b4873dace501406a1bc8cd8e1e9 to < 012bfcd5a51082d5a65f096dfb9ca652b5267965, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/13decd3b3b3a4d8a2e603fb8c9ffde0c6be3c225
git.kernel.orghttps://git.kernel.org/stable/c/a19bede30f0da5ae56782edac62b5998a7434cba
git.kernel.orghttps://git.kernel.org/stable/c/33f706884821da9cb55b650b7b1d4f2bdf800137
git.kernel.orghttps://git.kernel.org/stable/c/2de9c458cc49d8db6408a7c5fbf0c7c94fe4d52b
git.kernel.orghttps://git.kernel.org/stable/c/9c6af88fbefbe77608b77409df23a1617e28398c
git.kernel.orghttps://git.kernel.org/stable/c/c593f38e1cdb92f87d01be4c4e5ac12417b1454b
git.kernel.orghttps://git.kernel.org/stable/c/012bfcd5a51082d5a65f096dfb9ca652b5267965

07 Fixed in

Debian 12

linux
Fixed in 6.1.190-1
linux-6.12
Fixed in 6.12.113-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.113-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.2.9-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.