CVE-2026-98476

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Source
https://cve.org/CVERecord?id=CVE-2026-98476
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98476.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-98476
Downstream
Published
2026-10-18T15:15:45Z
Modified
2026-10-20T02:30:23Z
Summary
s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str()
Details

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.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98476.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
199652309a4d6635fca19d7528d73ab9e219bd9a
Fixed
9d8b21820caed9128945fffcedf03e2a4c21eee2
Fixed
5fc54e04dad90b15d0430118b3f288a1d64e66c9
Fixed
27e396a89f76f742abdbe9f8c4a58a6e806fdf59
Fixed
dbf30e661ceb9a52c94c85719716391dcc29142a
Fixed
5e006ac90a4d331db1dd712b91fec849b45ffc01
Fixed
c3bbcb32deecc06ebb1762398399b566d5ff2fc9
Fixed
44b16b02608058fc72198ac0205969f0f43065df
Fixed
5b76268dac968612f7283d59b539036de955b7d9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98476.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.18.0
Fixed
5.10.271
Type
ECOSYSTEM
Events
Introduced
5.11.0
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-2026-98476.json"