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CVE-2026-80679

s390/dasd: Fix potential NULL pointer dereference PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 91dc4a197569230683ca8bad551e655a4bf14c30 before dbf2ae34d2f1390a9fc1abf3dce7f809e022caae; affected 91dc4a197569230683ca8bad551e655a4bf14c30 before 3000367a512b1283ca52230bf21f8c91dfbec45b; affected 91dc4a197569230683ca8bad551e655a4bf14c30 before cdc7b73d0c5a9cd6360b4f8c36eae23b02097e4c; affected 91dc4a197569230683ca8bad551e655a4bf14c30 before e156c70c505c6c9adce3b7be5a82025f00544709; affected 91dc4a197569230683ca8bad551e655a4bf14c30 before 3453a993a3f14c1684560ecf26585046976f6ac6; affected 91dc4a197569230683ca8bad551e655a4bf14c30 before 86cdfd061509bcde84f3145f7221ba64e3e53b1f; affected 91dc4a197569230683ca8bad551e655a4bf14c30 before 96b8e09b09539f252a5eeea6baebd93c2e3779bd; affected 91dc4a197569230683ca8bad551e655a4bf14c30 before 9973026f572db6b67570cadc30942f3014e41079
Linux / Linuxaffected 5.3; unaffected 0 before 5.3; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.151 through 6.6.*; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References