CVE-2026-80679
s390/dasd: Fix potential NULL pointer dereference
Description
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Fix potential NULL pointer dereference dasd_release_space() checks the implementation of the is_ese() discipline function before calling it to determine if a given device is an ESE DASD. The current usage of the logical AND operator will lead to a NULL pointer dereference as the function is called even if the function pointer is NULL. Fix this by using the logical OR operator.
INFO
Published Date :
Aug. 28, 2026, 8:16 a.m.
Last Modified :
Aug. 28, 2026, 8:16 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-80679
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Use logical OR operator instead of logical AND.
- Apply the patch to the Linux kernel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-80679.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-80679 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-80679
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-80679 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-80679 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 28, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Fix potential NULL pointer dereference dasd_release_space() checks the implementation of the is_ese() discipline function before calling it to determine if a given device is an ESE DASD. The current usage of the logical AND operator will lead to a NULL pointer dereference as the function is called even if the function pointer is NULL. Fix this by using the logical OR operator. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/80xxx/CVE-2026-80679.json">CVE-2026-80679</a> Added Reference https://git.kernel.org/stable/c/3000367a512b1283ca52230bf21f8c91dfbec45b Added Reference https://git.kernel.org/stable/c/3453a993a3f14c1684560ecf26585046976f6ac6 Added Reference https://git.kernel.org/stable/c/86cdfd061509bcde84f3145f7221ba64e3e53b1f Added Reference https://git.kernel.org/stable/c/96b8e09b09539f252a5eeea6baebd93c2e3779bd Added Reference https://git.kernel.org/stable/c/9973026f572db6b67570cadc30942f3014e41079 Added Reference https://git.kernel.org/stable/c/cdc7b73d0c5a9cd6360b4f8c36eae23b02097e4c Added Reference https://git.kernel.org/stable/c/dbf2ae34d2f1390a9fc1abf3dce7f809e022caae Added Reference https://git.kernel.org/stable/c/e156c70c505c6c9adce3b7be5a82025f00544709