CVE-2026-80679
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 28, 2026
First seenAug 28, 2026
How to fix
Update
- Linux Linuxdbf2ae34d2f1390a9fc1abf3dce7f809e022caae, 3000367a512b1283ca52230bf21f8c91dfbec45b, cdc7b73d0c5a9cd6360b4f8c36eae23b02097e4c, e156c70c505c6c9adce3b7be5a82025f00544709, 3453a993a3f14c1684560ecf26585046976f6ac6, 86cdfd061509bcde84f3145f7221ba64e3e53b1f, 96b8e09b09539f252a5eeea6baebd93c2e3779bd, 9973026f572db6b67570cadc30942f3014e41079 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 91dc4a197569230683ca8bad551e655a4bf14c30 ≤ v < dbf2ae34d2f1390a9fc1abf3dce7f809e022caae, 91dc4a197569230683ca8bad551e655a4bf14c30 ≤ v < 3000367a512b1283ca52230bf21f8c91dfbec45b, 91dc4a197569230683ca8bad551e655a4bf14c30 ≤ v < cdc7b73d0c5a9cd6360b4f8c36eae23b02097e4c, 91dc4a197569230683ca8bad551e655a4bf14c30 ≤ v < e156c70c505c6c9adce3b7be5a82025f00544709, 91dc4a197569230683ca8bad551e655a4bf14c30 ≤ v < 3453a993a3f14c1684560ecf26585046976f6ac6, 91dc4a197569230683ca8bad551e655a4bf14c30 ≤ v < 86cdfd061509bcde84f3145f7221ba64e3e53b1f, 91dc4a197569230683ca8bad551e655a4bf14c30 ≤ v < 96b8e09b09539f252a5eeea6baebd93c2e3779bd, 91dc4a197569230683ca8bad551e655a4bf14c30 ≤ v < 9973026f572db6b67570cadc30942f3014e41079, 5.3 | dbf2ae34d2f1390a9fc1abf3dce7f809e022caae, 3000367a512b1283ca52230bf21f8c91dfbec45b, cdc7b73d0c5a9cd6360b4f8c36eae23b02097e4c, e156c70c505c6c9adce3b7be5a82025f00544709, 3453a993a3f14c1684560ecf26585046976f6ac6, 86cdfd061509bcde84f3145f7221ba64e3e53b1f, 96b8e09b09539f252a5eeea6baebd93c2e3779bd, 9973026f572db6b67570cadc30942f3014e41079 |
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