CVE-2026-80679

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.

• git.kernel.orghttps://git.kernel.org/stable/c/3000367a512b1283ca52230bf21f8c91dfbec45b
• git.kernel.orghttps://git.kernel.org/stable/c/3453a993a3f14c1684560ecf26585046976f6ac6
• git.kernel.orghttps://git.kernel.org/stable/c/86cdfd061509bcde84f3145f7221ba64e3e53b1f
• git.kernel.orghttps://git.kernel.org/stable/c/96b8e09b09539f252a5eeea6baebd93c2e3779bd
• git.kernel.orghttps://git.kernel.org/stable/c/9973026f572db6b67570cadc30942f3014e41079
• git.kernel.orghttps://git.kernel.org/stable/c/cdc7b73d0c5a9cd6360b4f8c36eae23b02097e4c
• git.kernel.orghttps://git.kernel.org/stable/c/dbf2ae34d2f1390a9fc1abf3dce7f809e022caae
• git.kernel.orghttps://git.kernel.org/stable/c/e156c70c505c6c9adce3b7be5a82025f00544709

No related CVEs by CWE or product.